Pyrite with Calcite

Diógenes Group of Mines, Quintos Lebrachos, Solana del Pino, Comarca Valle de Alcudia y Sierra Madrona  Spain (1972-1975)

Specimen size: 8.4 × 4.8 × 4 cm = 3.31” × 1.89” × 1.57”
Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”